#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>

int main()
{
	int n = 0; 
	int i = 0;
	int sum = 0;
	int ch = 0;

	scanf("%d", &n);

	for (i = 0; i < n; i++)
	{
		scanf("%d", &ch);
		sum = sum + ch;

	}

	printf("%d", sum);

	return 0;
}